CA2275761A1 - Catheter for radiofrequency ablation of tumors - Google Patents

Catheter for radiofrequency ablation of tumors Download PDF

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Publication number
CA2275761A1
CA2275761A1 CA002275761A CA2275761A CA2275761A1 CA 2275761 A1 CA2275761 A1 CA 2275761A1 CA 002275761 A CA002275761 A CA 002275761A CA 2275761 A CA2275761 A CA 2275761A CA 2275761 A1 CA2275761 A1 CA 2275761A1
Authority
CA
Canada
Prior art keywords
metal plate
tumors
catheter
thermistors
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002275761A
Other languages
French (fr)
Other versions
CA2275761C (en
Inventor
Francesco Garbagnati
Sandro Rossi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Invatec SpA
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2275761A1 publication Critical patent/CA2275761A1/en
Application granted granted Critical
Publication of CA2275761C publication Critical patent/CA2275761C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
    • A61N1/403—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals for thermotherapy, e.g. hyperthermia
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1485—Probes or electrodes therefor having a short rigid shaft for accessing the inner body through natural openings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
    • A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
    • A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00547—Prostate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
    • A61B2018/00577—Ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A61B2018/00773—Sensed parameters
    • A61B2018/00791—Temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A61B2018/1246—Generators therefor characterised by the output polarity
    • A61B2018/1253—Generators therefor characterised by the output polarity monopolar

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Otolaryngology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Materials For Medical Uses (AREA)
  • Radiation-Therapy Devices (AREA)
  • External Artificial Organs (AREA)

Abstract

A catheter for the treatment of tumors by hyperthermia induced by radiofrequency or other energy comprises a tubular body (1) having a proximal end (2) connected to a handle member and near the other end a cooled metal plate (5) capable to act as active electrode provided with an electric cable (8) for connection to the energy generator and with thermistors (9,10) to be connected to the display of said generator, the tubular body (1) having at least a longitudinal channel (11,12) for the passage of tissual thermistors, a longitudinal channel (11,12) for the passage of electric cables and a pair of longitudinal channels for inflow and outflow pipes of the liquid cooling the metal plate (5). The metal plate can be built in a ring-like form, wherein the body of the ring has an empty space intended for the circulation of the cooling fluid.
CA002275761A 1996-12-24 1997-12-19 Catheter for radiofrequency ablation of tumors Expired - Fee Related CA2275761C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT96MI002745A IT1290866B1 (en) 1996-12-24 1996-12-24 PROBE-CATHETER FOR THE TREATMENT OF TUMORS OF PARENCHYMATOUS ORGANS WITH RADIOFREQUENCY INDUCED INTERSTIZIAL HYPERTHERMIA
ITMI96A002745 1996-12-24
PCT/IB1997/001586 WO1998027881A1 (en) 1996-12-24 1997-12-19 Catheter for radiofrequency ablation of tumors

Publications (2)

Publication Number Publication Date
CA2275761A1 true CA2275761A1 (en) 1998-07-02
CA2275761C CA2275761C (en) 2006-11-07

Family

ID=11375494

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002275761A Expired - Fee Related CA2275761C (en) 1996-12-24 1997-12-19 Catheter for radiofrequency ablation of tumors

Country Status (14)

Country Link
US (1) US6322560B1 (en)
EP (1) EP0955924B1 (en)
JP (1) JP3904241B2 (en)
CN (1) CN1221219C (en)
AT (1) ATE261704T1 (en)
AU (1) AU723925B2 (en)
BR (1) BR9714430A (en)
CA (1) CA2275761C (en)
DE (1) DE69728167T2 (en)
ES (1) ES2213840T3 (en)
HK (1) HK1025234A1 (en)
IL (1) IL130501A (en)
IT (1) IT1290866B1 (en)
WO (1) WO1998027881A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6517534B1 (en) 1998-02-11 2003-02-11 Cosman Company, Inc. Peri-urethral ablation
US6440127B2 (en) 1998-02-11 2002-08-27 Cosman Company, Inc. Method for performing intraurethral radio-frequency urethral enlargement
US6447505B2 (en) 1998-02-11 2002-09-10 Cosman Company, Inc. Balloon catheter method for intra-urethral radio-frequency urethral enlargement
US6840935B2 (en) * 2000-08-09 2005-01-11 Bekl Corporation Gynecological ablation procedure and system using an ablation needle
US6743226B2 (en) 2001-02-09 2004-06-01 Cosman Company, Inc. Adjustable trans-urethral radio-frequency ablation
US20060025761A1 (en) * 2004-07-29 2006-02-02 Riley Lee B Linear-array radio frequency resections
US20070016262A1 (en) 2005-07-13 2007-01-18 Betastim, Ltd. Gi and pancreatic device for treating obesity and diabetes
WO2007092610A2 (en) 2006-02-07 2007-08-16 Tivamed, Inc. Vaginal remodeling device and methods
CN100574719C (en) * 2006-12-26 2009-12-30 上海导向医疗系统有限公司 Gas throttling cooling type radio frequency ablation electrode
US8414559B2 (en) 2009-05-07 2013-04-09 Rainbow Medical Ltd. Gastroretentive duodenal pill
CA2774265C (en) 2009-09-18 2019-02-19 Viveve, Inc. Vaginal remodeling device and methods
WO2012086313A1 (en) * 2010-12-24 2012-06-28 日本ライフライン株式会社 Electrode catheter
US9764160B2 (en) 2011-12-27 2017-09-19 HJ Laboratories, LLC Reducing absorption of radiation by healthy cells from an external radiation source
TWI541001B (en) * 2012-08-09 2016-07-11 國立成功大學 Electromagnetic thermotherapy needle
US9861431B2 (en) 2013-03-13 2018-01-09 Kyphon SÀRL Radiofrequency inflatable device
US9173701B2 (en) 2013-03-15 2015-11-03 Warsaw Orthopedic, Inc. RF enabled inflatable bone tamp
CN103654945A (en) * 2013-11-21 2014-03-26 方润医疗器械科技（上海）有限公司 Low-temperature plasma treating system
US11432870B2 (en) 2016-10-04 2022-09-06 Avent, Inc. Cooled RF probes
AU2019204574A1 (en) 2018-06-27 2020-01-23 Viveve, Inc. Methods for treating urinary stress incontinence

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370675A (en) * 1992-08-12 1994-12-06 Vidamed, Inc. Medical probe device and method
US5344435A (en) * 1988-07-28 1994-09-06 Bsd Medical Corporation Urethral inserted applicator prostate hyperthermia
GB8822492D0 (en) * 1988-09-24 1988-10-26 Considine J Apparatus for removing tumours from hollow organs of body
US5191883A (en) * 1988-10-28 1993-03-09 Prutech Research And Development Partnership Ii Device for heating tissue in a patient's body
IT1251997B (en) * 1991-11-11 1995-05-27 San Romanello Centro Fond RADIANT DEVICE FOR HYPERTHERMIA
WO1994007446A1 (en) * 1992-10-05 1994-04-14 Boston Scientific Corporation Device and method for heating tissue
US5545161A (en) * 1992-12-01 1996-08-13 Cardiac Pathways Corporation Catheter for RF ablation having cooled electrode with electrically insulated sleeve
DE69434185T2 (en) 1993-06-10 2005-06-02 Imran, Mir A., Los Altos Hills URETHRAL DEVICE FOR ABLATION BY HIGH FREQUENCY
US5647871A (en) * 1995-03-10 1997-07-15 Microsurge, Inc. Electrosurgery with cooled electrodes
WO1996034570A1 (en) * 1995-05-01 1996-11-07 Ep Technologies, Inc. Systems and methods for obtaining desired lesion characteristics while ablating body tissue

Also Published As

Publication number Publication date
DE69728167T2 (en) 2004-12-30
EP0955924B1 (en) 2004-03-17
JP3904241B2 (en) 2007-04-11
IL130501A0 (en) 2000-06-01
US6322560B1 (en) 2001-11-27
JP2001506897A (en) 2001-05-29
ITMI962745A1 (en) 1998-06-24
CA2275761C (en) 2006-11-07
CN1241917A (en) 2000-01-19
AU723925B2 (en) 2000-09-07
ITMI962745A0 (en) 1996-12-24
AU5233698A (en) 1998-07-17
ATE261704T1 (en) 2004-04-15
WO1998027881A1 (en) 1998-07-02
BR9714430A (en) 2000-05-02
ES2213840T3 (en) 2004-09-01
DE69728167D1 (en) 2004-04-22
HK1025234A1 (en) 2000-11-10
IT1290866B1 (en) 1998-12-14
IL130501A (en) 2004-06-20
EP0955924A1 (en) 1999-11-17
CN1221219C (en) 2005-10-05

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20171219